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			     <title>显示每个CPU的IDT信息 - correy</title>
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				<h1>原文地址:<a href="http://drops.wooyun.org/tips/4854">http://drops.wooyun.org/tips/4854</a></h1>
				
      <p>
        <h1>0x00 简介</h1>

<hr />

<p>记得2008年看保护模式的教程时，痛苦与那些众多的位信息等复杂的结构。 后来入这行，干了几年的驱动。 这是才对这些CPU基本的知识有点了解。</p>

<p>IDT，中断描述符表，这个基本的东西，岂能不会。 IDT HOOK的东西已经很多了，不过这里不是搞这个的(因为64位windows上是不建议的，除非...)，而是检测IDT HOOK，向处理器虚拟化进军的。</p>

<p>好了，闲话不说，进入正题，之前之所以没有搞是因为没有找到权威的，可行的资料，具体的说是结构。</p>

<!--more-->

<h1>0x01 start</h1>

<hr />

<p>这里不说保护模式的一些基本原理，假定看官已经知道了。</p>

<p>下面正式进入主题： 如何开始呢？ IDT是由IDTR指定的</p>

<p>这里先用WINDBG手工分析下，然后编程实现。</p>

<pre><code>#!bash
0: kd&gt; r idtr 
idtr=8003f400
</code></pre>

<p>这个IDT有多大呢？</p>

<pre><code>#!bash
0: kd&gt; r idtl
idtl=000007ff
</code></pre>

<p>其实大小就是这个数加一。</p>

<p>地址找到了，大小找到了，关键是这个是啥结构，IDT长啥样呢？</p>

<pre><code>#!bash
0: kd&gt; dt _KIDTENTRY
ntdll!_KIDTENTRY
   +0x000 Offset           : Uint2B
   +0x002 Selector         : Uint2B
   +0x004 Access           : Uint2B
   +0x006 ExtendedOffset   : Uint2B
</code></pre>

<p>就这样。</p>

<p>就是这个结构的数组。</p>

<p>下面看看第一个成员。</p>

<pre><code>#!bash
0: kd&gt; dt _KIDTENTRY 8003f400
ntdll!_KIDTENTRY
   +0x000 Offset           : 0x3360
   +0x002 Selector         : 8
   +0x004 Access           : 0x8e00
   +0x006 ExtendedOffset   : 0x8054
</code></pre>

<p>这个结构的具体的含义，请看Intel的手册或者相关的资料。</p>

<p>经过计算得出地址是：0x80543360</p>

<p>验证的方式之一:</p>

<pre><code>#!bash
0: kd&gt; u 0x80543360
nt!KiTrap00:
80543360 6a00            push    0
80543362 66c74424020000  mov     word ptr [esp+2],0
80543369 55              push    ebp
8054336a 53              push    ebx
8054336b 56              push    esi
8054336c 57              push    edi
8054336d 0fa0            push    fs
8054336f bb30000000      mov     ebx,30h
</code></pre>

<p>看到了吧！显示的是正确的。</p>

<p>另一个办法是：</p>

<pre><code>#!bash
0: kd&gt; !idt -a 

Dumping IDT: 8003f400

8cde863500000000:   80543360 nt!KiTrap00
8cde863500000001:   805434dc nt!KiTrap01
8cde863500000002:   Task Selector = 0x0058
8cde863500000003:   805438f0 nt!KiTrap03
8cde863500000004:   80543a70 nt!KiTrap04
8cde863500000005:   80543bd0 nt!KiTrap05
8cde863500000006:   80543d44 nt!KiTrap06
8cde863500000007:   805443bc nt!KiTrap07
8cde863500000008:   Task Selector = 0x0050
8cde863500000009:   805447c0 nt!KiTrap09
8cde86350000000a:   805448e0 nt!KiTrap0A
8cde86350000000b:   80544a20 nt!KiTrap0B
8cde86350000000c:   80544c80 nt!KiTrap0C
8cde86350000000d:   80544f6c nt!KiTrap0D
8cde86350000000e:   8054568c nt!KiTrap0E
8cde86350000000f:   8054590c nt!KiTrap0F
8cde863500000010:   80545a2c nt!KiTrap10
8cde863500000011:   80545b68 nt!KiTrap11
8cde863500000012:   Task Selector = 0x00A0
8cde863500000013:   80545cd0 nt!KiTrap13
8cde863500000014:   8054590c nt!KiTrap0F
8cde863500000015:   8054590c nt!KiTrap0F
8cde863500000016:   8054590c nt!KiTrap0F
8cde863500000017:   8054590c nt!KiTrap0F
8cde863500000018:   8054590c nt!KiTrap0F
8cde863500000019:   8054590c nt!KiTrap0F
8cde86350000001a:   8054590c nt!KiTrap0F
8cde86350000001b:   8054590c nt!KiTrap0F
8cde86350000001c:   8054590c nt!KiTrap0F
8cde86350000001d:   8054590c nt!KiTrap0F
8cde86350000001e:   8054590c nt!KiTrap0F
8cde86350000001f:   806e810c hal!HalpApicSpuriousService
8cde863500000020:   00000000
8cde863500000021:   00000000
8cde863500000022:   00000000
8cde863500000023:   00000000
8cde863500000024:   00000000
8cde863500000025:   00000000
8cde863500000026:   00000000
8cde863500000027:   00000000
8cde863500000028:   00000000
8cde863500000029:   00000000
8cde86350000002a:   80542b8e nt!KiGetTickCount
8cde86350000002b:   80542c90 nt!KiCallbackReturn
8cde86350000002c:   80542e40 nt!KiSetLowWaitHighThread
8cde86350000002d:   805437cc nt!KiDebugService
8cde86350000002e:   80542611 nt!KiSystemService
8cde86350000002f:   8054590c nt!KiTrap0F
8cde863500000030:   80541cd0 nt!KiStartUnexpectedRange
8cde863500000031:   80541cda nt!KiUnexpectedInterrupt1
8cde863500000032:   80541ce4 nt!KiUnexpectedInterrupt2
8cde863500000033:   80541cee nt!KiUnexpectedInterrupt3
8cde863500000034:   80541cf8 nt!KiUnexpectedInterrupt4
8cde863500000035:   80541d02 nt!KiUnexpectedInterrupt5
8cde863500000036:   80541d0c nt!KiUnexpectedInterrupt6
8cde863500000037:   806e7864 hal!PicSpuriousService37
8cde863500000038:   80541d20 nt!KiUnexpectedInterrupt8
8cde863500000039:   80541d2a nt!KiUnexpectedInterrupt9
8cde86350000003a:   80541d34 nt!KiUnexpectedInterrupt10
8cde86350000003b:   80541d3e nt!KiUnexpectedInterrupt11
8cde86350000003c:   80541d48 nt!KiUnexpectedInterrupt12
8cde86350000003d:   806e8e2c hal!HalpApcInterrupt
8cde86350000003e:   80541d5c nt!KiUnexpectedInterrupt14
8cde86350000003f:   80541d66 nt!KiUnexpectedInterrupt15
8cde863500000040:   80541d70 nt!KiUnexpectedInterrupt16
8cde863500000041:   806e8c88 hal!HalpDispatchInterrupt
8cde863500000042:   80541d84 nt!KiUnexpectedInterrupt18
8cde863500000043:   80541d8e nt!KiUnexpectedInterrupt19
8cde863500000044:   80541d98 nt!KiUnexpectedInterrupt20
8cde863500000045:   80541da2 nt!KiUnexpectedInterrupt21
8cde863500000046:   80541dac nt!KiUnexpectedInterrupt22
8cde863500000047:   80541db6 nt!KiUnexpectedInterrupt23
8cde863500000048:   80541dc0 nt!KiUnexpectedInterrupt24
8cde863500000049:   80541dca nt!KiUnexpectedInterrupt25
8cde86350000004a:   80541dd4 nt!KiUnexpectedInterrupt26
8cde86350000004b:   80541dde nt!KiUnexpectedInterrupt27
8cde86350000004c:   80541de8 nt!KiUnexpectedInterrupt28
8cde86350000004d:   80541df2 nt!KiUnexpectedInterrupt29
8cde86350000004e:   80541dfc nt!KiUnexpectedInterrupt30
8cde86350000004f:   80541e06 nt!KiUnexpectedInterrupt31
8cde863500000050:   806e793c hal!HalpApicRebootService
8cde863500000051:   80541e1a nt!KiUnexpectedInterrupt33
8cde863500000052:   80541e24 nt!KiUnexpectedInterrupt34
8cde863500000053:   80541e2e nt!KiUnexpectedInterrupt35
8cde863500000054:   80541e38 nt!KiUnexpectedInterrupt36
8cde863500000055:   80541e42 nt!KiUnexpectedInterrupt37
8cde863500000056:   80541e4c nt!KiUnexpectedInterrupt38
8cde863500000057:   80541e56 nt!KiUnexpectedInterrupt39
8cde863500000058:   80541e60 nt!KiUnexpectedInterrupt40
8cde863500000059:   80541e6a nt!KiUnexpectedInterrupt41
8cde86350000005a:   80541e74 nt!KiUnexpectedInterrupt42
8cde86350000005b:   80541e7e nt!KiUnexpectedInterrupt43
8cde86350000005c:   80541e88 nt!KiUnexpectedInterrupt44
8cde86350000005d:   80541e92 nt!KiUnexpectedInterrupt45
8cde86350000005e:   80541e9c nt!KiUnexpectedInterrupt46
8cde86350000005f:   80541ea6 nt!KiUnexpectedInterrupt47
8cde863500000060:   80541eb0 nt!KiUnexpectedInterrupt48
8cde863500000061:   80541eba nt!KiUnexpectedInterrupt49
8cde863500000062:   81c2f044 atapi!IdePortInterrupt (KINTERRUPT 81c2f008)
8cde863500000063:   81c0a624 portcls!CKsShellRequestor::`vector deleting destructor'+0x26 (KINTERRUPT 81c0a5e8)
8cde863500000064:   80541ed8 nt!KiUnexpectedInterrupt52
8cde863500000065:   80541ee2 nt!KiUnexpectedInterrupt53
8cde863500000066:   80541eec nt!KiUnexpectedInterrupt54
8cde863500000067:   80541ef6 nt!KiUnexpectedInterrupt55
8cde863500000068:   80541f00 nt!KiUnexpectedInterrupt56
8cde863500000069:   80541f0a nt!KiUnexpectedInterrupt57
8cde86350000006a:   80541f14 nt!KiUnexpectedInterrupt58
8cde86350000006b:   80541f1e nt!KiUnexpectedInterrupt59
8cde86350000006c:   80541f28 nt!KiUnexpectedInterrupt60
8cde86350000006d:   80541f32 nt!KiUnexpectedInterrupt61
8cde86350000006e:   80541f3c nt!KiUnexpectedInterrupt62
8cde86350000006f:   80541f46 nt!KiUnexpectedInterrupt63
8cde863500000070:   80541f50 nt!KiUnexpectedInterrupt64
8cde863500000071:   80541f5a nt!KiUnexpectedInterrupt65
8cde863500000072:   80541f64 nt!KiUnexpectedInterrupt66
8cde863500000073:   81efabec SCSIPORT!ScsiPortInterrupt (KINTERRUPT 81efabb0)
8cde863500000074:   80541f78 nt!KiUnexpectedInterrupt68
8cde863500000075:   80541f82 nt!KiUnexpectedInterrupt69
8cde863500000076:   80541f8c nt!KiUnexpectedInterrupt70
8cde863500000077:   80541f96 nt!KiUnexpectedInterrupt71
8cde863500000078:   80541fa0 nt!KiUnexpectedInterrupt72
8cde863500000079:   80541faa nt!KiUnexpectedInterrupt73
8cde86350000007a:   80541fb4 nt!KiUnexpectedInterrupt74
8cde86350000007b:   80541fbe nt!KiUnexpectedInterrupt75
8cde86350000007c:   80541fc8 nt!KiUnexpectedInterrupt76
8cde86350000007d:   80541fd2 nt!KiUnexpectedInterrupt77
8cde86350000007e:   80541fdc nt!KiUnexpectedInterrupt78
8cde86350000007f:   80541fe6 nt!KiUnexpectedInterrupt79
8cde863500000080:   80541ff0 nt!KiUnexpectedInterrupt80
8cde863500000081:   80541ffa nt!KiUnexpectedInterrupt81
8cde863500000082:   820c1bec atapi!IdePortInterrupt (KINTERRUPT 820c1bb0)
8cde863500000083:   81c1d044 *** ERROR: Symbol file could not be found.  Defaulted to export symbols for vmci.sys - 
vmci!DllUnload+0x7d6 (KINTERRUPT 81c1d008)
8cde863500000084:   80542018 nt!KiUnexpectedInterrupt84
8cde863500000085:   80542022 nt!KiUnexpectedInterrupt85
8cde863500000086:   8054202c nt!KiUnexpectedInterrupt86
8cde863500000087:   80542036 nt!KiUnexpectedInterrupt87
8cde863500000088:   80542040 nt!KiUnexpectedInterrupt88
8cde863500000089:   8054204a nt!KiUnexpectedInterrupt89
8cde86350000008a:   80542054 nt!KiUnexpectedInterrupt90
8cde86350000008b:   8054205e nt!KiUnexpectedInterrupt91
8cde86350000008c:   80542068 nt!KiUnexpectedInterrupt92
8cde86350000008d:   80542072 nt!KiUnexpectedInterrupt93
8cde86350000008e:   8054207c nt!KiUnexpectedInterrupt94
8cde86350000008f:   80542086 nt!KiUnexpectedInterrupt95
8cde863500000090:   80542090 nt!KiUnexpectedInterrupt96
8cde863500000091:   8054209a nt!KiUnexpectedInterrupt97
8cde863500000092:   805420a4 nt!KiUnexpectedInterrupt98
8cde863500000093:   82059bec i8042prt!I8042KeyboardInterruptService (KINTERRUPT 82059bb0)
8cde863500000094:   805420b8 nt!KiUnexpectedInterrupt100
8cde863500000095:   805420c2 nt!KiUnexpectedInterrupt101
8cde863500000096:   805420cc nt!KiUnexpectedInterrupt102
8cde863500000097:   805420d6 nt!KiUnexpectedInterrupt103
8cde863500000098:   805420e0 nt!KiUnexpectedInterrupt104
8cde863500000099:   805420ea nt!KiUnexpectedInterrupt105
8cde86350000009a:   805420f4 nt!KiUnexpectedInterrupt106
8cde86350000009b:   805420fe nt!KiUnexpectedInterrupt107
8cde86350000009c:   80542108 nt!KiUnexpectedInterrupt108
8cde86350000009d:   80542112 nt!KiUnexpectedInterrupt109
8cde86350000009e:   8054211c nt!KiUnexpectedInterrupt110
8cde86350000009f:   80542126 nt!KiUnexpectedInterrupt111
8cde8635000000a0:   80542130 nt!KiUnexpectedInterrupt112
8cde8635000000a1:   8054213a nt!KiUnexpectedInterrupt113
8cde8635000000a2:   80542144 nt!KiUnexpectedInterrupt114
8cde8635000000a3:   82002044 i8042prt!I8042MouseInterruptService (KINTERRUPT 82002008)
8cde8635000000a4:   80542158 nt!KiUnexpectedInterrupt116
8cde8635000000a5:   80542162 nt!KiUnexpectedInterrupt117
8cde8635000000a6:   8054216c nt!KiUnexpectedInterrupt118
8cde8635000000a7:   80542176 nt!KiUnexpectedInterrupt119
8cde8635000000a8:   80542180 nt!KiUnexpectedInterrupt120
8cde8635000000a9:   8054218a nt!KiUnexpectedInterrupt121
8cde8635000000aa:   80542194 nt!KiUnexpectedInterrupt122
8cde8635000000ab:   8054219e nt!KiUnexpectedInterrupt123
8cde8635000000ac:   805421a8 nt!KiUnexpectedInterrupt124
8cde8635000000ad:   805421b2 nt!KiUnexpectedInterrupt125
8cde8635000000ae:   805421bc nt!KiUnexpectedInterrupt126
8cde8635000000af:   805421c6 nt!KiUnexpectedInterrupt127
8cde8635000000b0:   805421d0 nt!KiUnexpectedInterrupt128
8cde8635000000b1:   820ca044 ACPI!ACPIInterruptServiceRoutine (KINTERRUPT 820ca008)
8cde8635000000b2:   805421e4 nt!KiUnexpectedInterrupt130
8cde8635000000b3:   805421ee nt!KiUnexpectedInterrupt131
8cde8635000000b4:   81f43a94 NDIS!ndisMIsr (KINTERRUPT 81f43a58)
8cde8635000000b5:   80542202 nt!KiUnexpectedInterrupt133
8cde8635000000b6:   8054220c nt!KiUnexpectedInterrupt134
8cde8635000000b7:   80542216 nt!KiUnexpectedInterrupt135
8cde8635000000b8:   80542220 nt!KiUnexpectedInterrupt136
8cde8635000000b9:   8054222a nt!KiUnexpectedInterrupt137
8cde8635000000ba:   80542234 nt!KiUnexpectedInterrupt138
8cde8635000000bb:   8054223e nt!KiUnexpectedInterrupt139
8cde8635000000bc:   80542248 nt!KiUnexpectedInterrupt140
8cde8635000000bd:   80542252 nt!KiUnexpectedInterrupt141
8cde8635000000be:   8054225c nt!KiUnexpectedInterrupt142
8cde8635000000bf:   80542266 nt!KiUnexpectedInterrupt143
8cde8635000000c0:   80542270 nt!KiUnexpectedInterrupt144
8cde8635000000c1:   806e7ac0 hal!HalpBroadcastCallService
8cde8635000000c2:   80542284 nt!KiUnexpectedInterrupt146
8cde8635000000c3:   8054228e nt!KiUnexpectedInterrupt147
8cde8635000000c4:   80542298 nt!KiUnexpectedInterrupt148
8cde8635000000c5:   805422a2 nt!KiUnexpectedInterrupt149
8cde8635000000c6:   805422ac nt!KiUnexpectedInterrupt150
8cde8635000000c7:   805422b6 nt!KiUnexpectedInterrupt151
8cde8635000000c8:   805422c0 nt!KiUnexpectedInterrupt152
8cde8635000000c9:   805422ca nt!KiUnexpectedInterrupt153
8cde8635000000ca:   805422d4 nt!KiUnexpectedInterrupt154
8cde8635000000cb:   805422de nt!KiUnexpectedInterrupt155
8cde8635000000cc:   805422e8 nt!KiUnexpectedInterrupt156
8cde8635000000cd:   805422f2 nt!KiUnexpectedInterrupt157
8cde8635000000ce:   805422fc nt!KiUnexpectedInterrupt158
8cde8635000000cf:   80542306 nt!KiUnexpectedInterrupt159
8cde8635000000d0:   80542310 nt!KiUnexpectedInterrupt160
8cde8635000000d1:   806e6e54 hal!HalpClockInterrupt
8cde8635000000d2:   80542324 nt!KiUnexpectedInterrupt162
8cde8635000000d3:   8054232e nt!KiUnexpectedInterrupt163
8cde8635000000d4:   80542338 nt!KiUnexpectedInterrupt164
8cde8635000000d5:   80542342 nt!KiUnexpectedInterrupt165
8cde8635000000d6:   8054234c nt!KiUnexpectedInterrupt166
8cde8635000000d7:   80542356 nt!KiUnexpectedInterrupt167
8cde8635000000d8:   80542360 nt!KiUnexpectedInterrupt168
8cde8635000000d9:   8054236a nt!KiUnexpectedInterrupt169
8cde8635000000da:   80542374 nt!KiUnexpectedInterrupt170
8cde8635000000db:   8054237e nt!KiUnexpectedInterrupt171
8cde8635000000dc:   80542388 nt!KiUnexpectedInterrupt172
8cde8635000000dd:   80542392 nt!KiUnexpectedInterrupt173
8cde8635000000de:   8054239c nt!KiUnexpectedInterrupt174
8cde8635000000df:   805423a6 nt!KiUnexpectedInterrupt175
8cde8635000000e0:   805423b0 nt!KiUnexpectedInterrupt176
8cde8635000000e1:   806e8048 hal!HalpIpiHandler
8cde8635000000e2:   805423c4 nt!KiUnexpectedInterrupt178
8cde8635000000e3:   806e7dac hal!HalpLocalApicErrorService
8cde8635000000e4:   805423d8 nt!KiUnexpectedInterrupt180
8cde8635000000e5:   805423e2 nt!KiUnexpectedInterrupt181
8cde8635000000e6:   805423ec nt!KiUnexpectedInterrupt182
8cde8635000000e7:   805423f6 nt!KiUnexpectedInterrupt183
8cde8635000000e8:   80542400 nt!KiUnexpectedInterrupt184
8cde8635000000e9:   8054240a nt!KiUnexpectedInterrupt185
8cde8635000000ea:   80542414 nt!KiUnexpectedInterrupt186
8cde8635000000eb:   8054241e nt!KiUnexpectedInterrupt187
8cde8635000000ec:   80542428 nt!KiUnexpectedInterrupt188
8cde8635000000ed:   80542432 nt!KiUnexpectedInterrupt189
8cde8635000000ee:   80542439 nt!KiUnexpectedInterrupt190
8cde8635000000ef:   80542440 nt!KiUnexpectedInterrupt191
8cde8635000000f0:   80542447 nt!KiUnexpectedInterrupt192
8cde8635000000f1:   8054244e nt!KiUnexpectedInterrupt193
8cde8635000000f2:   80542455 nt!KiUnexpectedInterrupt194
8cde8635000000f3:   8054245c nt!KiUnexpectedInterrupt195
8cde8635000000f4:   80542463 nt!KiUnexpectedInterrupt196
8cde8635000000f5:   8054246a nt!KiUnexpectedInterrupt197
8cde8635000000f6:   80542471 nt!KiUnexpectedInterrupt198
8cde8635000000f7:   80542478 nt!KiUnexpectedInterrupt199
8cde8635000000f8:   8054247f nt!KiUnexpectedInterrupt200
8cde8635000000f9:   80542486 nt!KiUnexpectedInterrupt201
8cde8635000000fa:   8054248d nt!KiUnexpectedInterrupt202
8cde8635000000fb:   80542494 nt!KiUnexpectedInterrupt203
8cde8635000000fc:   8054249b nt!KiUnexpectedInterrupt204
8cde8635000000fd:   806e85a8 hal!HalpProfileInterrupt
8cde8635000000fe:   806e8748 hal!HalpPerfInterrupt
8cde8635000000ff:   805424b0 nt!KiUnexpectedInterrupt207
</code></pre>

<p>注意：要带参数，不然不显示NTOS*.EXE中的中断。</p>

<p>至此：X86上的一个CPU的IDT样例分析完毕。</p>

<p>至于剩余CPU的，X64的分析类似，具体的分析可以看附件。</p>

<p>也可以作为看官的作业题。作业完成算是看懂了本文。</p>

<p>下面简单说一下编码的注意事项：</p>

<h2>1.首先是多CPU。</h2>

<hr />

<p>早期的Windows版本可以用内核导出的变量KeNumberProcessors。</p>

<p>高版本的可以搜索KeGet*或者KeQuery系列的函数。</p>

<h2>2.附加/贴近CPU，具体的说是线程，可以参考：</h2>

<p>KeSetSystemAffinityThread</p>

<p>KeRevertToUserAffinityThread</p>

<h2>3.因为是底层的操作，大多是用汇编实现的，还好微软提供了：</h2>

<p>__sidt 参见：http://msdn.microsoft.com/zh-cn/library/aa983358%28v=vs.120%29.aspx</p>

<p>另一个思路是用：KeGetPcr()。</p>

<p>这个在X86上可以自己实现，其实也是用封装的汇编指令。</p>

<p>X64上这个可以直接调用。</p>

<h2>4.如果要HOOK，看看如下两个链接：</h2>

<p>_disable https://msdn.microsoft.com/zh-cn/library/y14401ab(v=vs.90).aspx</p>

<p>_enable https://msdn.microsoft.com/zh-cn/library/ad820yz3(v=vs.90).aspx</p>

<h2>5.具体的编码和处理就看你的了。</h2>

<p>再补充点： 32位下IDTR指向的位置可以用结构：</p>

<pre><code>#!c
// Special Registers for i386
typedef struct _X86_DESCRIPTOR {
    USHORT  Pad;
    USHORT  Limit;
    ULONG   Base;
} X86_DESCRIPTOR, *PX86_DESCRIPTOR;

kd&gt; dt _DESCRIPTOR 注意：64位下没有这个结构。
nt!_DESCRIPTOR
   +0x000 Pad              : Uint2B
   +0x002 Limit            : Uint2B
   +0x004 Base             : Uint4B
</code></pre>

<p>64位下IDTR指向的位置可以用结构：</p>

<pre><code>#!c
// Special Registers for AMD64.
typedef struct _AMD64_DESCRIPTOR {
    USHORT  Pad[3];
    USHORT  Limit;
    ULONG64 Base;
} AMD64_DESCRIPTOR, *PAMD64_DESCRIPTOR;

1: kd&gt; dt _AMD64_DESCRIPTOR 注意：运行环境是64位系统。
test!_AMD64_DESCRIPTOR
   +0x000 Pad              : [3] Uint2B
   +0x006 Limit            : Uint2B
   +0x008 Base             : Uint8B
</code></pre>

<p>不说了：看垃圾代码吧！ 注释以上的结构摘自：WRK。 书于匆忙之后，如有不足请指正。</p>

<hr />

<pre><code>#!c
/*
功能：显示每个CPU的IDT信息。
注释：一下结构摘自WRK。

参考：
http://uninformed.org/index.cgi?v=8&amp;a=2&amp;p=8
http://resources.infosecinstitute.com/hooking-idt/

made by correy.
made at 2015.01.05.
*/

#include &lt;ntifs.h&gt;
#include &lt;windef.h&gt;

typedef
VOID
(*PKINTERRUPT_ROUTINE) (
    VOID
    );

struct _KINTERRUPT;

// begin_ntddk begin_wdm begin_ntifs begin_ntosp

typedef
BOOLEAN
(*PKSERVICE_ROUTINE) (
    IN struct _KINTERRUPT *Interrupt,
    IN PVOID ServiceContext
    );

#define NORMAL_DISPATCH_LENGTH 106                  // ntddk wdm
#define DISPATCH_LENGTH NORMAL_DISPATCH_LENGTH      // ntddk wdm

// Interrupt object
typedef struct _KINTERRUPT {
    CSHORT Type;
    CSHORT Size;
    LIST_ENTRY InterruptListEntry;
    PKSERVICE_ROUTINE ServiceRoutine;
    PVOID ServiceContext;
    KSPIN_LOCK SpinLock;
    ULONG TickCount;
    PKSPIN_LOCK ActualLock;
    PKINTERRUPT_ROUTINE DispatchAddress;
    ULONG Vector;
    KIRQL Irql;
    KIRQL SynchronizeIrql;
    BOOLEAN FloatingSave;
    BOOLEAN Connected;
    CCHAR Number;
    BOOLEAN ShareVector;
    KINTERRUPT_MODE Mode;
    ULONG ServiceCount;
    ULONG DispatchCount;

#if defined(_AMD64_)
    PKTRAP_FRAME TrapFrame;
    PVOID Reserved;
    ULONG DispatchCode[DISPATCH_LENGTH];
#else
    ULONG DispatchCode[DISPATCH_LENGTH];
#endif

} KINTERRUPT;



#if defined(_WIN64)

// Special Registers for AMD64.
typedef struct _AMD64_DESCRIPTOR {
    USHORT  Pad[3];
    USHORT  Limit;
    ULONG64 Base;
} AMD64_DESCRIPTOR, *PAMD64_DESCRIPTOR;

// Define Interrupt Descriptor Table (IDT) entry structure and constants.
typedef union _KIDTENTRY64 {
   struct {
       USHORT OffsetLow;
       USHORT Selector;
       USHORT IstIndex : 3;
       USHORT Reserved0 : 5;
       USHORT Type : 5;
       USHORT Dpl : 2;
       USHORT Present : 1;
       USHORT OffsetMiddle;
       ULONG OffsetHigh;
       ULONG Reserved1;
   };

   ULONG64 Alignment;
} KIDTENTRY64, *PKIDTENTRY64;

typedef union _KIDT_HANDLER_ADDRESS {
    struct {
        USHORT OffsetLow;
        USHORT OffsetMiddle;
        ULONG OffsetHigh;
    };

    ULONG64 Address;
} KIDT_HANDLER_ADDRESS, *PKIDT_HANDLER_ADDRESS;

#define KiGetIdtFromVector(Vector)                  \
    &amp;KeGetPcr()-&gt;IdtBase[HalVectorToIDTEntry(Vector)]

#define KeGetIdtHandlerAddress(Vector,Addr) {       \
    KIDT_HANDLER_ADDRESS Handler;                   \
    PKIDTENTRY64 Idt;                               \
    \
    Idt = KiGetIdtFromVector(Vector);               \
    Handler.OffsetLow = Idt-&gt;OffsetLow;             \
    Handler.OffsetMiddle = Idt-&gt;OffsetMiddle;       \
    Handler.OffsetHigh = Idt-&gt;OffsetHigh;           \
    *(Addr) = (PVOID)(Handler.Address);             \
}

#define KeSetIdtHandlerAddress(Vector,Addr) {      \
    KIDT_HANDLER_ADDRESS Handler;                  \
    PKIDTENTRY64 Idt;                              \
    \
    Idt = KiGetIdtFromVector(Vector);              \
    Handler.Address = (ULONG64)(Addr);             \
    Idt-&gt;OffsetLow = Handler.OffsetLow;            \
    Idt-&gt;OffsetMiddle = Handler.OffsetMiddle;      \
    Idt-&gt;OffsetHigh = Handler.OffsetHigh;          \
}

#else 

// Special Registers for i386
typedef struct _X86_DESCRIPTOR {
    USHORT  Pad;
    USHORT  Limit;
    ULONG   Base;
} X86_DESCRIPTOR, *PX86_DESCRIPTOR;


// Entry of Interrupt Descriptor Table (IDTENTRY)
typedef struct _KIDTENTRY {
   USHORT Offset;
   USHORT Selector;
   USHORT Access;
   USHORT ExtendedOffset;
} KIDTENTRY;
typedef KIDTENTRY *PKIDTENTRY;

// begin_nthal
//
// Macro to set address of a trap/interrupt handler to IDT
//
#define KiSetHandlerAddressToIDT(Vector, HandlerAddress) {\
    UCHAR IDTEntry = HalVectorToIDTEntry(Vector); \
    ULONG Ha = (ULONG)HandlerAddress; \
    KeGetPcr()-&gt;IDT[IDTEntry].ExtendedOffset = HIGHWORD(Ha); \
    KeGetPcr()-&gt;IDT[IDTEntry].Offset = LOWWORD(Ha); \
}

//
// Macro to return address of a trap/interrupt handler in IDT
//
#define KiReturnHandlerAddressFromIDT(Vector) \
   MAKEULONG(KiPcr()-&gt;IDT[HalVectorToIDTEntry(Vector)].ExtendedOffset, KiPcr()-&gt;IDT[HalVectorToIDTEntry(Vector)].Offset)

#endif


DRIVER_UNLOAD DriverUnload;
VOID DriverUnload(__in PDRIVER_OBJECT DriverObject)
{   

}


#if defined(_WIN64)
void show_idt(int i)
    /*
    i的取值可以是0.
    */
{
    AMD64_DESCRIPTOR idtr = {0};

    SIZE_T r = 0;
    PVOID p = 0;
    int index = 0;
    int maximun = 0;

    PKIDTENTRY64 pkidte = 0;
    SIZE_T ISR = 0;
    USHORT us = 0;

    KeSetSystemAffinityThread(i + 1);
    __sidt(&amp;idtr);//KeGetPcr函数可是可用的哟！
    KeRevertToUserAffinityThread();

    p = &amp;idtr.Pad[1];
    r = * (SIZE_T *)p;

    pkidte = (PKIDTENTRY64)r; 

    if (idtr.Pad[0] % sizeof(KIDTENTRY64) == 0) {//idtr.Pad[0] == 0xfff.
        maximun = idtr.Pad[0] / sizeof(KIDTENTRY64);
    } else {
        maximun = idtr.Pad[0] / sizeof(KIDTENTRY64);
        maximun++;//这个数也是256.
    }

    for ( ;index &lt; maximun ;index++ ) 
    {
        PKIDTENTRY64 pkidte_t = &amp;pkidte[index];

        ISR = pkidte_t-&gt;OffsetHigh;
        ISR = (ISR &lt;&lt; 32);
        ISR += (pkidte_t-&gt;OffsetLow + (pkidte_t-&gt;OffsetMiddle &lt;&lt; 16));

        if (pkidte_t-&gt;IstIndex == 0) {
            KdPrint(("第%d号CPU的第0x%02x中断的地址:0x%p\n", i, index, ISR));
        } else {
            KdPrint(("第%d号CPU的第0x%02x中断的地址:0x%p\n", i, index, ISR));//还可以进一步获取Stack的信息。
        }
    }
}
#else 
void show_idt(int i)
    /*
    i的取值可以是0.
    */
{
    //SIZE_T IDTR;
    X86_DESCRIPTOR idtr = {0};//A pointer to the memory location where the IDTR is stored.

    SIZE_T r = 0;
    PVOID p = 0;
    int index = 0;
    int maximun = 0;

    PKIDTENTRY pkidte;
    SIZE_T ISR = 0;

    KeSetSystemAffinityThread(i + 1);
    __sidt(&amp;idtr);// http://msdn.microsoft.com/zh-cn/library/aa983358%28v=vs.120%29.aspx 另一个思路是自己实现：KeGetPcr()。
    KeRevertToUserAffinityThread();

    p = &amp;idtr.Limit;
    r = * (SIZE_T *)p;

    pkidte = (PKIDTENTRY)r; 

    /*
    其实直接：
    maximun = (idtr.Base + 1) / sizeof(KIDTENTRY);
    也可以。
    maximun一般等于256.
    */
    if (idtr.Pad % sizeof(KIDTENTRY) == 0) {
        maximun = idtr.Pad / sizeof(KIDTENTRY);
    } else {
        maximun = idtr.Pad / sizeof(KIDTENTRY);
        maximun++;
    }

    for ( ;index &lt; maximun ;index++ ) //另一个思路是根据Limit来遍历，这个数一般是2047 == 0x7ff.
    {
        PKIDTENTRY pkidte_t = &amp;pkidte[index];

        if (pkidte_t-&gt;ExtendedOffset) {
            ISR = pkidte_t-&gt;Offset + (pkidte_t-&gt;ExtendedOffset &lt;&lt; 16);
            KdPrint(("第%d号CPU的第0x%02x中断的地址:0x%p\n", i, index, ISR));
        } else {//注意：pkidte_t-&gt;ExtendedOffset == 0的情况的分析。
            if (pkidte_t-&gt;Selector == 8) {
                KdPrint(("第%d号CPU的第0x%02x中断没有使用。Offset:0x%x,Access:0x%x.\n", i, index, pkidte_t-&gt;Offset, pkidte_t-&gt;Access));
            } else {
                KdPrint(("第%d号CPU的第0x%02x中断的Task Selector:0x%x, Offset:0x%x, Access:0x%x。\n", i, index, pkidte_t-&gt;Selector, pkidte_t-&gt;Offset, pkidte_t-&gt;Access));
            }
        }
    }
}
#endif


#pragma INITCODE
DRIVER_INITIALIZE DriverEntry;
NTSTATUS DriverEntry(__in struct _DRIVER_OBJECT * DriverObject, __in PUNICODE_STRING RegistryPath)
{
    int i = 0;

    KdBreakPoint();

    DriverObject-&gt;DriverUnload = DriverUnload;

    for ( ;i &lt; KeNumberProcessors ;i++ )//KeQueryMaximumProcessorCount()
    {        
        show_idt(i);        
    }

    return STATUS_SUCCESS;
} 
</code></pre>

<hr />

<pre><code>#!bash
/*
0: kd&gt; !idt

Dumping IDT: 8003f400

455901d000000037:   806e7864 hal!PicSpuriousService37
455901d00000003d:   806e8e2c hal!HalpApcInterrupt
455901d000000041:   806e8c88 hal!HalpDispatchInterrupt
455901d000000050:   806e793c hal!HalpApicRebootService
455901d000000062:   81fd6044 atapi!IdePortInterrupt (KINTERRUPT 81fd6008)
455901d000000063:   81f1ebec portcls!CKsShellRequestor::`vector deleting destructor'+0x26 (KINTERRUPT 81f1ebb0)
455901d000000073:   81d17bec SCSIPORT!ScsiPortInterrupt (KINTERRUPT 81d17bb0)
455901d000000082:   81e26bec atapi!IdePortInterrupt (KINTERRUPT 81e26bb0)
455901d000000083:   81c42044 vmci!DllUnload+0x7d6 (KINTERRUPT 81c42008)
             VIDEOPRT!pVideoPortInterrupt (KINTERRUPT 81d0e758)
455901d000000093:   81fcd684 i8042prt!I8042KeyboardInterruptService (KINTERRUPT 81fcd648)
455901d0000000a3:   81d0ebec i8042prt!I8042MouseInterruptService (KINTERRUPT 81d0ebb0)
455901d0000000b1:   820ce8cc ACPI!ACPIInterruptServiceRoutine (KINTERRUPT 820ce890)
455901d0000000b4:   81e1e9ec NDIS!ndisMIsr (KINTERRUPT 81e1e9b0)
455901d0000000c1:   806e7ac0 hal!HalpBroadcastCallService
455901d0000000d1:   806e6e54 hal!HalpClockInterrupt
455901d0000000e1:   806e8048 hal!HalpIpiHandler
455901d0000000e3:   806e7dac hal!HalpLocalApicErrorService
455901d0000000fd:   806e85a8 hal!HalpProfileInterrupt
455901d0000000fe:   806e8748 hal!HalpPerfInterrupt

0: kd&gt; !pcr 
KPCR for Processor 0 at ffdff000:
    Major 1 Minor 1
    NtTib.ExceptionList: 80551cb0
        NtTib.StackBase: 805524f0
       NtTib.StackLimit: 8054f700
     NtTib.SubSystemTib: 00000000
          NtTib.Version: 00000000
      NtTib.UserPointer: 00000000
          NtTib.SelfTib: 00000000

                SelfPcr: ffdff000
                   Prcb: ffdff120
                   Irql: 00000000
                    IRR: 00000000
                    IDR: ffffffff
          InterruptMode: 00000000
                    IDT: 8003f400
                    GDT: 8003f000
                    TSS: 80042000

          CurrentThread: 8055ce60
             NextThread: 00000000
             IdleThread: 8055ce60

              DpcQueue: 
0: kd&gt; r idtr
idtr=8003f400
0: kd&gt; dw idtr
8003f400  3360 0008 8e00 8054 34dc 0008 8e00 8054
8003f410  113e 0058 8500 0000 38f0 0008 ee00 8054
8003f420  3a70 0008 ee00 8054 3bd0 0008 8e00 8054
8003f430  3d44 0008 8e00 8054 43bc 0008 8e00 8054
8003f440  1198 0050 8500 0000 47c0 0008 8e00 8054
8003f450  48e0 0008 8e00 8054 4a20 0008 8e00 8054
8003f460  4c80 0008 8e00 8054 4f6c 0008 8e00 8054
8003f470  568c 0008 8e00 8054 590c 0008 8e00 8054
0: kd&gt; u 80543360
nt!KiTrap00:
80543360 6a00            push    0
80543362 66c74424020000  mov     word ptr [esp+2],0
80543369 55              push    ebp
8054336a 53              push    ebx
8054336b 56              push    esi
8054336c 57              push    edi
8054336d 0fa0            push    fs
8054336f bb30000000      mov     ebx,30h
0: kd&gt; u 805434dc
nt!KiTrap01:
805434dc 6a00            push    0
805434de 66c74424020000  mov     word ptr [esp+2],0
805434e5 55              push    ebp
805434e6 53              push    ebx
805434e7 56              push    esi
805434e8 57              push    edi
805434e9 0fa0            push    fs
805434eb bb30000000      mov     ebx,30h
1: kd&gt; !idt -a 

Dumping IDT: f8733590

2d65dee600000000:   80543360 nt!KiTrap00
2d65dee600000001:   805434dc nt!KiTrap01
2d65dee600000002:   Task Selector = 0x0058
2d65dee600000003:   805438f0 nt!KiTrap03
2d65dee600000004:   80543a70 nt!KiTrap04
2d65dee600000005:   80543bd0 nt!KiTrap05
2d65dee600000006:   80543d44 nt!KiTrap06
2d65dee600000007:   805443bc nt!KiTrap07
2d65dee600000008:   Task Selector = 0x0050
2d65dee600000009:   805447c0 nt!KiTrap09
2d65dee60000000a:   805448e0 nt!KiTrap0A
2d65dee60000000b:   80544a20 nt!KiTrap0B
2d65dee60000000c:   80544c80 nt!KiTrap0C
2d65dee60000000d:   80544f6c nt!KiTrap0D
2d65dee60000000e:   8054568c nt!KiTrap0E
2d65dee60000000f:   8054590c nt!KiTrap0F
2d65dee600000010:   80545a2c nt!KiTrap10
2d65dee600000011:   80545b68 nt!KiTrap11
2d65dee600000012:   Task Selector = 0x00A0
2d65dee600000013:   80545cd0 nt!KiTrap13
2d65dee600000014:   8054590c nt!KiTrap0F
2d65dee600000015:   8054590c nt!KiTrap0F
2d65dee600000016:   8054590c nt!KiTrap0F
2d65dee600000017:   8054590c nt!KiTrap0F
2d65dee600000018:   8054590c nt!KiTrap0F
2d65dee600000019:   8054590c nt!KiTrap0F
2d65dee60000001a:   8054590c nt!KiTrap0F
2d65dee60000001b:   8054590c nt!KiTrap0F
2d65dee60000001c:   8054590c nt!KiTrap0F
2d65dee60000001d:   8054590c nt!KiTrap0F
2d65dee60000001e:   8054590c nt!KiTrap0F
2d65dee60000001f:   806e810c hal!HalpApicSpuriousService
2d65dee600000020:   00000000
2d65dee600000021:   00000000
2d65dee600000022:   00000000
2d65dee600000023:   00000000
2d65dee600000024:   00000000
2d65dee600000025:   00000000
2d65dee600000026:   00000000
2d65dee600000027:   00000000
2d65dee600000028:   00000000
2d65dee600000029:   00000000
2d65dee60000002a:   80542b8e nt!KiGetTickCount
2d65dee60000002b:   80542c90 nt!KiCallbackReturn
2d65dee60000002c:   80542e40 nt!KiSetLowWaitHighThread
2d65dee60000002d:   805437cc nt!KiDebugService
2d65dee60000002e:   80542611 nt!KiSystemService
2d65dee60000002f:   8054590c nt!KiTrap0F
2d65dee600000030:   80541cd0 nt!KiStartUnexpectedRange
2d65dee600000031:   80541cda nt!KiUnexpectedInterrupt1
2d65dee600000032:   80541ce4 nt!KiUnexpectedInterrupt2
2d65dee600000033:   80541cee nt!KiUnexpectedInterrupt3
2d65dee600000034:   80541cf8 nt!KiUnexpectedInterrupt4
2d65dee600000035:   80541d02 nt!KiUnexpectedInterrupt5
2d65dee600000036:   80541d0c nt!KiUnexpectedInterrupt6
2d65dee600000037:   806e7864 hal!PicSpuriousService37
2d65dee600000038:   80541d20 nt!KiUnexpectedInterrupt8
2d65dee600000039:   80541d2a nt!KiUnexpectedInterrupt9
2d65dee60000003a:   80541d34 nt!KiUnexpectedInterrupt10
2d65dee60000003b:   80541d3e nt!KiUnexpectedInterrupt11
2d65dee60000003c:   80541d48 nt!KiUnexpectedInterrupt12
2d65dee60000003d:   806e8e2c hal!HalpApcInterrupt
2d65dee60000003e:   80541d5c nt!KiUnexpectedInterrupt14
2d65dee60000003f:   80541d66 nt!KiUnexpectedInterrupt15
2d65dee600000040:   80541d70 nt!KiUnexpectedInterrupt16
2d65dee600000041:   806e8c88 hal!HalpDispatchInterrupt
2d65dee600000042:   80541d84 nt!KiUnexpectedInterrupt18
2d65dee600000043:   80541d8e nt!KiUnexpectedInterrupt19
2d65dee600000044:   80541d98 nt!KiUnexpectedInterrupt20
2d65dee600000045:   80541da2 nt!KiUnexpectedInterrupt21
2d65dee600000046:   80541dac nt!KiUnexpectedInterrupt22
2d65dee600000047:   80541db6 nt!KiUnexpectedInterrupt23
2d65dee600000048:   80541dc0 nt!KiUnexpectedInterrupt24
2d65dee600000049:   80541dca nt!KiUnexpectedInterrupt25
2d65dee60000004a:   80541dd4 nt!KiUnexpectedInterrupt26
2d65dee60000004b:   80541dde nt!KiUnexpectedInterrupt27
2d65dee60000004c:   80541de8 nt!KiUnexpectedInterrupt28
2d65dee60000004d:   80541df2 nt!KiUnexpectedInterrupt29
2d65dee60000004e:   80541dfc nt!KiUnexpectedInterrupt30
2d65dee60000004f:   80541e06 nt!KiUnexpectedInterrupt31
2d65dee600000050:   806e793c hal!HalpApicRebootService
2d65dee600000051:   80541e1a nt!KiUnexpectedInterrupt33
2d65dee600000052:   80541e24 nt!KiUnexpectedInterrupt34
2d65dee600000053:   80541e2e nt!KiUnexpectedInterrupt35
2d65dee600000054:   80541e38 nt!KiUnexpectedInterrupt36
2d65dee600000055:   80541e42 nt!KiUnexpectedInterrupt37
2d65dee600000056:   80541e4c nt!KiUnexpectedInterrupt38
2d65dee600000057:   80541e56 nt!KiUnexpectedInterrupt39
2d65dee600000058:   80541e60 nt!KiUnexpectedInterrupt40
2d65dee600000059:   80541e6a nt!KiUnexpectedInterrupt41
2d65dee60000005a:   80541e74 nt!KiUnexpectedInterrupt42
2d65dee60000005b:   80541e7e nt!KiUnexpectedInterrupt43
2d65dee60000005c:   80541e88 nt!KiUnexpectedInterrupt44
2d65dee60000005d:   80541e92 nt!KiUnexpectedInterrupt45
2d65dee60000005e:   80541e9c nt!KiUnexpectedInterrupt46
2d65dee60000005f:   80541ea6 nt!KiUnexpectedInterrupt47
2d65dee600000060:   80541eb0 nt!KiUnexpectedInterrupt48
2d65dee600000061:   80541eba nt!KiUnexpectedInterrupt49
2d65dee600000062:   8208e63c atapi!IdePortInterrupt (KINTERRUPT 8208e600)
2d65dee600000063:   82070c74 portcls!CKsShellRequestor::`vector deleting destructor'+0x26 (KINTERRUPT 82070c38)
2d65dee600000064:   80541ed8 nt!KiUnexpectedInterrupt52
2d65dee600000065:   80541ee2 nt!KiUnexpectedInterrupt53
2d65dee600000066:   80541eec nt!KiUnexpectedInterrupt54
2d65dee600000067:   80541ef6 nt!KiUnexpectedInterrupt55
2d65dee600000068:   80541f00 nt!KiUnexpectedInterrupt56
2d65dee600000069:   80541f0a nt!KiUnexpectedInterrupt57
2d65dee60000006a:   80541f14 nt!KiUnexpectedInterrupt58
2d65dee60000006b:   80541f1e nt!KiUnexpectedInterrupt59
2d65dee60000006c:   80541f28 nt!KiUnexpectedInterrupt60
2d65dee60000006d:   80541f32 nt!KiUnexpectedInterrupt61
2d65dee60000006e:   80541f3c nt!KiUnexpectedInterrupt62
2d65dee60000006f:   80541f46 nt!KiUnexpectedInterrupt63
2d65dee600000070:   80541f50 nt!KiUnexpectedInterrupt64
2d65dee600000071:   80541f5a nt!KiUnexpectedInterrupt65
2d65dee600000072:   80541f64 nt!KiUnexpectedInterrupt66
2d65dee600000073:   81f80bbc SCSIPORT!ScsiPortInterrupt (KINTERRUPT 81f80b80)
2d65dee600000074:   80541f78 nt!KiUnexpectedInterrupt68
2d65dee600000075:   80541f82 nt!KiUnexpectedInterrupt69
2d65dee600000076:   80541f8c nt!KiUnexpectedInterrupt70
2d65dee600000077:   80541f96 nt!KiUnexpectedInterrupt71
2d65dee600000078:   80541fa0 nt!KiUnexpectedInterrupt72
2d65dee600000079:   80541faa nt!KiUnexpectedInterrupt73
2d65dee60000007a:   80541fb4 nt!KiUnexpectedInterrupt74
2d65dee60000007b:   80541fbe nt!KiUnexpectedInterrupt75
2d65dee60000007c:   80541fc8 nt!KiUnexpectedInterrupt76
2d65dee60000007d:   80541fd2 nt!KiUnexpectedInterrupt77
2d65dee60000007e:   80541fdc nt!KiUnexpectedInterrupt78
2d65dee60000007f:   80541fe6 nt!KiUnexpectedInterrupt79
2d65dee600000080:   80541ff0 nt!KiUnexpectedInterrupt80
2d65dee600000081:   80541ffa nt!KiUnexpectedInterrupt81
2d65dee600000082:   81f99bbc atapi!IdePortInterrupt (KINTERRUPT 81f99b80)
2d65dee600000083:   81ccd48c vmci!DllUnload+0x7d6 (KINTERRUPT 81ccd450)
             VIDEOPRT!pVideoPortInterrupt (KINTERRUPT 82091ca0)
2d65dee600000084:   80542018 nt!KiUnexpectedInterrupt84
2d65dee600000085:   80542022 nt!KiUnexpectedInterrupt85
2d65dee600000086:   8054202c nt!KiUnexpectedInterrupt86
2d65dee600000087:   80542036 nt!KiUnexpectedInterrupt87
2d65dee600000088:   80542040 nt!KiUnexpectedInterrupt88
2d65dee600000089:   8054204a nt!KiUnexpectedInterrupt89
2d65dee60000008a:   80542054 nt!KiUnexpectedInterrupt90
2d65dee60000008b:   8054205e nt!KiUnexpectedInterrupt91
2d65dee60000008c:   80542068 nt!KiUnexpectedInterrupt92
2d65dee60000008d:   80542072 nt!KiUnexpectedInterrupt93
2d65dee60000008e:   8054207c nt!KiUnexpectedInterrupt94
2d65dee60000008f:   80542086 nt!KiUnexpectedInterrupt95
2d65dee600000090:   80542090 nt!KiUnexpectedInterrupt96
2d65dee600000091:   8054209a nt!KiUnexpectedInterrupt97
2d65dee600000092:   805420a4 nt!KiUnexpectedInterrupt98
2d65dee600000093:   81c7435c i8042prt!I8042KeyboardInterruptService (KINTERRUPT 81c74320)
2d65dee600000094:   805420b8 nt!KiUnexpectedInterrupt100
2d65dee600000095:   805420c2 nt!KiUnexpectedInterrupt101
2d65dee600000096:   805420cc nt!KiUnexpectedInterrupt102
2d65dee600000097:   805420d6 nt!KiUnexpectedInterrupt103
2d65dee600000098:   805420e0 nt!KiUnexpectedInterrupt104
2d65dee600000099:   805420ea nt!KiUnexpectedInterrupt105
2d65dee60000009a:   805420f4 nt!KiUnexpectedInterrupt106
2d65dee60000009b:   805420fe nt!KiUnexpectedInterrupt107
2d65dee60000009c:   80542108 nt!KiUnexpectedInterrupt108
2d65dee60000009d:   80542112 nt!KiUnexpectedInterrupt109
2d65dee60000009e:   8054211c nt!KiUnexpectedInterrupt110
2d65dee60000009f:   80542126 nt!KiUnexpectedInterrupt111
2d65dee6000000a0:   80542130 nt!KiUnexpectedInterrupt112
2d65dee6000000a1:   8054213a nt!KiUnexpectedInterrupt113
2d65dee6000000a2:   80542144 nt!KiUnexpectedInterrupt114
2d65dee6000000a3:   81f306ec i8042prt!I8042MouseInterruptService (KINTERRUPT 81f306b0)
2d65dee6000000a4:   80542158 nt!KiUnexpectedInterrupt116
2d65dee6000000a5:   80542162 nt!KiUnexpectedInterrupt117
2d65dee6000000a6:   8054216c nt!KiUnexpectedInterrupt118
2d65dee6000000a7:   80542176 nt!KiUnexpectedInterrupt119
2d65dee6000000a8:   80542180 nt!KiUnexpectedInterrupt120
2d65dee6000000a9:   8054218a nt!KiUnexpectedInterrupt121
2d65dee6000000aa:   80542194 nt!KiUnexpectedInterrupt122
2d65dee6000000ab:   8054219e nt!KiUnexpectedInterrupt123
2d65dee6000000ac:   805421a8 nt!KiUnexpectedInterrupt124
2d65dee6000000ad:   805421b2 nt!KiUnexpectedInterrupt125
2d65dee6000000ae:   805421bc nt!KiUnexpectedInterrupt126
2d65dee6000000af:   805421c6 nt!KiUnexpectedInterrupt127
2d65dee6000000b0:   805421d0 nt!KiUnexpectedInterrupt128
2d65dee6000000b1:   821522ac ACPI!ACPIInterruptServiceRoutine (KINTERRUPT 82152270)
2d65dee6000000b2:   805421e4 nt!KiUnexpectedInterrupt130
2d65dee6000000b3:   805421ee nt!KiUnexpectedInterrupt131
2d65dee6000000b4:   8201b2ac NDIS!ndisMIsr (KINTERRUPT 8201b270)
2d65dee6000000b5:   80542202 nt!KiUnexpectedInterrupt133
2d65dee6000000b6:   8054220c nt!KiUnexpectedInterrupt134
2d65dee6000000b7:   80542216 nt!KiUnexpectedInterrupt135
2d65dee6000000b8:   80542220 nt!KiUnexpectedInterrupt136
2d65dee6000000b9:   8054222a nt!KiUnexpectedInterrupt137
2d65dee6000000ba:   80542234 nt!KiUnexpectedInterrupt138
2d65dee6000000bb:   8054223e nt!KiUnexpectedInterrupt139
2d65dee6000000bc:   80542248 nt!KiUnexpectedInterrupt140
2d65dee6000000bd:   80542252 nt!KiUnexpectedInterrupt141
2d65dee6000000be:   8054225c nt!KiUnexpectedInterrupt142
2d65dee6000000bf:   80542266 nt!KiUnexpectedInterrupt143
2d65dee6000000c0:   80542270 nt!KiUnexpectedInterrupt144
2d65dee6000000c1:   806e7ac0 hal!HalpBroadcastCallService
2d65dee6000000c2:   80542284 nt!KiUnexpectedInterrupt146
2d65dee6000000c3:   8054228e nt!KiUnexpectedInterrupt147
2d65dee6000000c4:   80542298 nt!KiUnexpectedInterrupt148
2d65dee6000000c5:   805422a2 nt!KiUnexpectedInterrupt149
2d65dee6000000c6:   805422ac nt!KiUnexpectedInterrupt150
2d65dee6000000c7:   805422b6 nt!KiUnexpectedInterrupt151
2d65dee6000000c8:   805422c0 nt!KiUnexpectedInterrupt152
2d65dee6000000c9:   805422ca nt!KiUnexpectedInterrupt153
2d65dee6000000ca:   805422d4 nt!KiUnexpectedInterrupt154
2d65dee6000000cb:   805422de nt!KiUnexpectedInterrupt155
2d65dee6000000cc:   805422e8 nt!KiUnexpectedInterrupt156
2d65dee6000000cd:   805422f2 nt!KiUnexpectedInterrupt157
2d65dee6000000ce:   805422fc nt!KiUnexpectedInterrupt158
2d65dee6000000cf:   80542306 nt!KiUnexpectedInterrupt159
2d65dee6000000d0:   80542310 nt!KiUnexpectedInterrupt160
2d65dee6000000d1:   806e72a0 hal!HalpClockInterruptPn
2d65dee6000000d2:   80542324 nt!KiUnexpectedInterrupt162
2d65dee6000000d3:   8054232e nt!KiUnexpectedInterrupt163
2d65dee6000000d4:   80542338 nt!KiUnexpectedInterrupt164
2d65dee6000000d5:   80542342 nt!KiUnexpectedInterrupt165
2d65dee6000000d6:   8054234c nt!KiUnexpectedInterrupt166
2d65dee6000000d7:   80542356 nt!KiUnexpectedInterrupt167
2d65dee6000000d8:   80542360 nt!KiUnexpectedInterrupt168
2d65dee6000000d9:   8054236a nt!KiUnexpectedInterrupt169
2d65dee6000000da:   80542374 nt!KiUnexpectedInterrupt170
2d65dee6000000db:   8054237e nt!KiUnexpectedInterrupt171
2d65dee6000000dc:   80542388 nt!KiUnexpectedInterrupt172
2d65dee6000000dd:   80542392 nt!KiUnexpectedInterrupt173
2d65dee6000000de:   8054239c nt!KiUnexpectedInterrupt174
2d65dee6000000df:   805423a6 nt!KiUnexpectedInterrupt175
2d65dee6000000e0:   805423b0 nt!KiUnexpectedInterrupt176
2d65dee6000000e1:   806e8048 hal!HalpIpiHandler
2d65dee6000000e2:   805423c4 nt!KiUnexpectedInterrupt178
2d65dee6000000e3:   806e7dac hal!HalpLocalApicErrorService
2d65dee6000000e4:   805423d8 nt!KiUnexpectedInterrupt180
2d65dee6000000e5:   805423e2 nt!KiUnexpectedInterrupt181
2d65dee6000000e6:   805423ec nt!KiUnexpectedInterrupt182
2d65dee6000000e7:   805423f6 nt!KiUnexpectedInterrupt183
2d65dee6000000e8:   80542400 nt!KiUnexpectedInterrupt184
2d65dee6000000e9:   8054240a nt!KiUnexpectedInterrupt185
2d65dee6000000ea:   80542414 nt!KiUnexpectedInterrupt186
2d65dee6000000eb:   8054241e nt!KiUnexpectedInterrupt187
2d65dee6000000ec:   80542428 nt!KiUnexpectedInterrupt188
2d65dee6000000ed:   80542432 nt!KiUnexpectedInterrupt189
2d65dee6000000ee:   80542439 nt!KiUnexpectedInterrupt190
2d65dee6000000ef:   80542440 nt!KiUnexpectedInterrupt191
2d65dee6000000f0:   80542447 nt!KiUnexpectedInterrupt192
2d65dee6000000f1:   8054244e nt!KiUnexpectedInterrupt193
2d65dee6000000f2:   80542455 nt!KiUnexpectedInterrupt194
2d65dee6000000f3:   8054245c nt!KiUnexpectedInterrupt195
2d65dee6000000f4:   80542463 nt!KiUnexpectedInterrupt196
2d65dee6000000f5:   8054246a nt!KiUnexpectedInterrupt197
2d65dee6000000f6:   80542471 nt!KiUnexpectedInterrupt198
2d65dee6000000f7:   80542478 nt!KiUnexpectedInterrupt199
2d65dee6000000f8:   8054247f nt!KiUnexpectedInterrupt200
2d65dee6000000f9:   80542486 nt!KiUnexpectedInterrupt201
2d65dee6000000fa:   8054248d nt!KiUnexpectedInterrupt202
2d65dee6000000fb:   80542494 nt!KiUnexpectedInterrupt203
2d65dee6000000fc:   8054249b nt!KiUnexpectedInterrupt204
2d65dee6000000fd:   806e85a8 hal!HalpProfileInterrupt
2d65dee6000000fe:   806e8748 hal!HalpPerfInterrupt
2d65dee6000000ff:   805424b0 nt!KiUnexpectedInterrupt207

kd&gt; r idtr
idtr=8003f400
kd&gt; !idt 8003f400

Dumping IDT: 8003f400

fbf4ec7d8003f400:   Task Selector = 0x6F4C
kd&gt; dt _KIDTENTRY
nt!_KIDTENTRY
   +0x000 Offset           : Uint2B
   +0x002 Selector         : Uint2B
   +0x004 Access           : Uint2B
   +0x006 ExtendedOffset   : Uint2B
kd&gt; dt _X86_DESCRIPTOR
Symbol _X86_DESCRIPTOR not found.
kd&gt; dt _DESCRIPTOR 注意：64位下没有这个结构。
nt!_DESCRIPTOR
   +0x000 Pad              : Uint2B
   +0x002 Limit            : Uint2B
   +0x004 Base             : Uint4B
0: kd&gt; dt nt!_KINTERRUPT 8208e398
   +0x000 Type             : 0n22
   +0x002 Size             : 0n484
   +0x004 InterruptListEntry : _LIST_ENTRY [ 0x8208e39c - 0x8208e39c ]
   +0x00c ServiceRoutine   : 0xba63e67e     unsigned char  atapi!IdePortInterrupt+0
   +0x010 ServiceContext   : 0x81fa4030 Void
   +0x014 SpinLock         : 0
   +0x018 TickCount        : 0xffffffff
   +0x01c ActualLock       : 0x8208e5fc  -&gt; 0
   +0x020 DispatchAddress  : 0x80546780     void  nt!KiInterruptDispatch+0
   +0x024 Vector           : 0x162
   +0x028 Irql             : 0x5 ''
   +0x029 SynchronizeIrql  : 0x5 ''
   +0x02a FloatingSave     : 0 ''
   +0x02b Connected        : 0x1 ''
   +0x02c Number           : 0 ''
   +0x02d ShareVector      : 0 ''
   +0x030 Mode             : 1 ( Latched )
   +0x034 ServiceCount     : 0
   +0x038 DispatchCount    : 0xffffffff
   +0x03c DispatchCode     : [106] 0x56535554

1: kd&gt; dt _AMD64_DESCRIPTOR 注意：运行环境是64位系统。
test!_AMD64_DESCRIPTOR
   +0x000 Pad              : [3] Uint2B
   +0x006 Limit            : Uint2B
   +0x008 Base             : Uint8B
1: kd&gt; dt _KIDTENTRY64 注意：运行环境是64位系统。
nt!_KIDTENTRY64
   +0x000 OffsetLow        : Uint2B
   +0x002 Selector         : Uint2B
   +0x004 IstIndex         : Pos 0, 3 Bits
   +0x004 Reserved0        : Pos 3, 5 Bits
   +0x004 Type             : Pos 8, 5 Bits
   +0x004 Dpl              : Pos 13, 2 Bits
   +0x004 Present          : Pos 15, 1 Bit
   +0x006 OffsetMiddle     : Uint2B
   +0x008 OffsetHigh       : Uint4B
   +0x00c Reserved1        : Uint4B
   +0x000 Alignment        : Uint8B
*/
</code></pre>      </p>
    
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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     